nateberkopec

Protecting Against Autonomous Agent rm -rf Commands

Protecting Against Agent rm -rf Commands

AI coding agents can run shell commands. Sometimes they run rm -rf by mistake. This deletes files forever. While of course I always read and approve all tool calls manually, by hand, and never let my agents work except under direct supervision 100% of the time, sometimes I miss things.

How It Works

1. Hooks catch rm -rf before it runs
2. Refuse the command with a clear error telling you to use trash

andyw8

POSSE Party Rails Application - Architectural Analysis

Inspired by: @marckohlbrugge's analysis of Fizzy by 37signals

Original Prompt

study the architecture of this rails app. does it differ from a typical rails app? think hard.

Analysis Metadata

swanson

# Add color coding based on Rails environment for safety

if defined? Rails
  banner = if Rails.env.production?
    "\e[41;97;1m #{Rails.env} \e[0m "
  else
    "\e[42;97;1m #{Rails.env} \e[0m "
  end

  # Build a custom prompt

jonnyjava

WORKING EFFECTIVELY WITH LEGACY CODE

To me, legacy code is simply code without tests. I’ve gotten some grief for this definition. What do tests have to do with whether code is bad? To me, the answer is straightforward, and it is a point that I elaborate throughout the book: Code without tests is bad code. It doesn’t matter how well written it is; it doesn’t matter how pretty or object-oriented or well-encapsulated it is. With tests, we can change the behavior of our code quickly and verifiably. Without them, we really don’t know if our code is getting better or worse.

Chapter 1 Changing Software

Four Reasons to Change Software: For simplicity’s sake, let’s look at four primary reasons to change software.

Sudok

Note: this assumes you are using ZSH shell.


## Installation

Install [asdf](https://github.com/asdf-vm/asdf):
```
$ git clone https://github.com/asdf-vm/asdf.git ~/.asdf --branch v0.4.0
$ echo -e '\n. $HOME/.asdf/asdf.sh' >> ~/.zshrc
$ echo -e '\n. $HOME/.asdf/completions/asdf.bash' >> ~/.zshrc

loilo

This is about how to split a GitHub pull request, following a real in-the-wild example.

So it happened that I once wanted to fix a bug (#832) on the shelljs repository.

I forked the repository, cloned it and created a new branch called ln-directory-dest. I fixed the bug, created a pull request, and implemented initial review feedback.

At this point, I had added the commits A, B, C, D, E and [F](https://github.com/Loilo/shelljs/commit/946ab48bf5cf9c8aac03407

ryanflach

1. rails new <project_name> -d postgresql --skip-turbolinks --skip-spring -T

• -d postgresql sets up the project to use PostgreSQL
• --skip-turbolinks & --skip-spring creates a project that does not use turbolinks or spring
• -T skips the creation of the test directory and use of Test::Unit

2. In the Gemfile:

• Available to all environments:
  • gem 'figaro' - store environment variables securely across your app (docs)
  • Uncomment gem 'bcrypt', '~> 3.1.7' if you will be hosting your own user accounts with passwords (docs)
• Inside of group :test:
  • gem 'rspec-rails' - user rspec in place of minitest (docs)

techgaun

Script

#!/bin/bash

yum install ncurses-devel openssl-devel -y
yum groupinstall "Development Tools" -y

cd /tmp
wget "http://erlang.org/download/otp_src_21.3.tar.gz" -O otp21.tar.gz

mhawksey

// setRowsData fills in one row of data per object defined in the objects Array.
// For every Column, it checks if data objects define a value for it.
// Arguments:
//   - sheet: the Sheet Object where the data will be written
//   - objects: an Array of Objects, each of which contains data for a row
//   - optHeadersRange: a Range of cells where the column headers are defined. This
//     defaults to the entire first row in sheet.
//   - optFirstDataRowIndex: index of the first row where data should be written. This
//     defaults to the row immediately below the headers.
function setRowsData(sheet, objects, optHeadersRange, optFirstDataRowIndex) {

eikes

# app deps
sudo yum install git

# erlang deps
sudo yum groupinstall "Development Tools"
sudo yum install ncurses-devel

# erlang
wget http://www.erlang.org/download/otp_src_18.1.tar.gz
tar -zxvf otp_src_18.1.tar.gz